Yes, I would have thought so. It surprised me that such an obvious bugcould be there, apparently for a long time. But it's real, andpotentially affects everyone. It probably doesn't affect highly modulardistros much, since the kernel itself will be relatively small.

> I never saw a description of the symptoms of encountering this bug.> Does it just hang, or what?>

You get an early-fault message on-screen, assuming that's enabled;otherwise it will just appear to hang. It happens in pagetable_init,when it allocates a new pagetable above the head.S mapping (8M in mycase). It will only hit if the kernel size approaches a 4M boundary,since it won't leave enough space mapped to construct the lowmem mappings.

It only affects native booting, since under Xen all those mappings havealready been constructed. It happened to me with a paravirt kernel thathappened to Xen compiled into it, but that was irrelevent (thoughmisleading; the 40k difference in kernel size was enough to make it nothappen in a non-Xen kernel).